PIC18F2420/2520/4420/4520
REGISTER 9-5:
PIR2: PERIPHERAL INTERRUPT REQUEST (FLAG) REGISTER 2
R/W-0
OSCFIF
bit 7
R/W-0
CMIF
U-0
—
R/W-0
EEIF
R/W-0
BCLIF
R/W-0
R/W-0
R/W-0
HLVDIF
TMR3IF
CCP2IF
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared x = Bit is unknown
bit 7
bit 6
OSCFIF: Oscillator Fail Interrupt Flag bit
1= Device oscillator failed, clock input has changed to INTOSC (must be cleared in software)
0= Device clock operating
CMIF: Comparator Interrupt Flag bit
1= Comparator input has changed (must be cleared in software)
0= Comparator input has not changed
bit 5
bit 4
Unimplemented: Read as ‘0’
EEIF: Data EEPROM/Flash Write Operation Interrupt Flag bit
1= The write operation is complete (must be cleared in software)
0= The write operation is not complete or has not been started
bit 3
bit 2
bit 1
bit 0
BCLIF: Bus Collision Interrupt Flag bit
1= A bus collision occurred (must be cleared in software)
0= No bus collision occurred
HLVDIF: High/Low-Voltage Detect Interrupt Flag bit
1= A high/low-voltage condition occurred (direction determined by VDIRMAG bit, HLVDCON<7>)
0= A high/low-voltage condition has not occurred
TMR3IF: TMR3 Overflow Interrupt Flag bit
1= TMR3 register overflowed (must be cleared in software)
0= TMR3 register did not overflow
CCP2IF: CCP2 Interrupt Flag bit
Capture mode:
1= A TMR1 register capture occurred (must be cleared in software)
0= No TMR1 register capture occurred
Compare mode:
1= A TMR1 register compare match occurred (must be cleared in software)
0= No TMR1 register compare match occurred
PWM mode:
Unused in this mode.
© 2008 Microchip Technology Inc.
DS39631E-page 97
MICROCHIP [ MICROCHIP ]
